Transformer oil drain is an operation, that no transformer can do without. In this article we will look what types of it do exist and when it is performed Full and Partial Transformer Oil Drain According to the degree of emptying of the tank transformer oil drain can be full and partial. Full drain isRead More
The problem removing water and particulate matter from high quality diesel fuel in the production process is quite common. Contamination of diesel fuel starts at the refinery and continues all the way down to storage facilities and fuel tanks. Water can be present in diesel fuel in solved or emulsified state. The latter is especiallyRead More
In many countries around the world today most of the transformers in operation were commissioned in the end of the previous century. That is why the issue of equipment replacement or lifetime extension is becoming important now. Power generation and distribution facilities must make decisions on the future strategy of improving the reliability of operatingRead More
The contamination of transformer oil during transportation and storage is not only particulate matter, but also water and gases from the air. The oil begins to age, and its parameters degrade: acid number and dissipation factor grow, while its dielectric strength decreases. This makes drying and degassing of oil imperative to keep the oil inRead More
It is common knowledge that moisture significantly reduces the insulating properties of transformer oil. The influence of moisture in oil is different depending on the temperature and the amount of moisture and the state it is present in a dielectric fluid. The moisture in oil can be present in three states: emulsion, solution and sedimentedRead More
After a long period of operation, transformers experience failures and breakdowns. The failures are generally prevented by planned service and maintenance. If maintenance detects a fault, the transformer is taken for repairs. It would be too costly for an enterprise to buy a new piece since a transformer is a very expensive unit. Dry airRead More
DRYING OF TRANSFORMER INSULATION: WHEN IS IT NEEDED? Transformer insulation needs drying to fully comply to existing standards and requirements. The cases in which the drying of transformer is necessary are as follows: traces of water were found on the active part or in the tank; storage of a transformer without oil exceeded one year;Read More
September, this year, GlobeCore restarted production of Mojave Heat -100 “Mojave Heat-100” is designed for drying of transformer tanks with hot air, which is dehydrated and cleaned from mechanical impurities. This equipment prevents the ingress of moisture from atmospheric air into the electrical insulation and the active part of transformer when the transformer is depressurized.Read More
On 17 Decembe 2015, GlobeCore engineers successfully commissioned an automated Mojave Heat Hot Air Drying unit in Oman. The Mojave Heat is designed to dehydrate atmospheric air and reduce its dew point to between -50ºC and -70ºС and to remove particulate matter from that air. The Mojave Heat can be used during installation and repairsRead More
Model Iney The “Frost” Model by GlobeCore is designed for vacuuming and drying the solid insulation of electric power transformers from 110 to 1100 kW. This equipment is used for maintaining the efficient operations of transformers. In order to ensure the initial trouble free operation of your electric power transformers, the use of the “Frost”Read More
Low Temperature Refrigeration Systems Production of new equipment has begun with GlobeCore’s low-temperature refrigeration units. These exciting new units are based on a two (2) stage design and are used for drying the windings inside electric power transformers. The drying takes place during de-pressurization and during service maintenance events. The machines can reduce working surfaceRead More
